Can closure and process for



June 24 1924. 1,498,670

0. NEUBERT. JR

CAN CLOSURE AND PROCESS FOR APPLYING SAME Filed Set. 20, 1923 Patented June 24, 1924.

T O ICE iunirrsn .s'rarss enannnsnnnnnar, an, onrAnrlMQnn, MARXLAND.

CAN CLDS UF RE AND PROCESS 'APFIIYING Application-filed September 20, 1923. Serial No. 6635811.

it appertains to make and use the same.

My invention relates to can closures and processes for applying same.

Among the objects of my *inventioniare To produce a can closure which :can be readily applied to a can after the can is charged with any desired substance and then by the application 1 of my improved ';p-rocess, I crimp :the closure in such a manner :that displacement :th-ereo f during transportation will be prevented. I preferably produce the crimping of the closure in such locations and of such shapesthat said closure may be removed from the can without destruction of either the closure or can, so that said closure may be removed from and replaced in the can a plurality of times by the ultimate consumer.

These and further objects of my invention will be set forth in the following specification, reference being had to the accompanying drawings, and the novel means and process involved in my invention will be definitely pointed out in the claims.

In the drawings Figure 1 is a plan view of the top of the can showing my improved closure applied thereto.

Fig. 2 is a section along the line 22 in Fig. 1 looking in the direction of the arrows.

In the drawings:

5 represents a can which is formed in any approved manner and has a top provided with the int-urned flange 6.

The closure 7 is formed in any approved manner and is provided with a flange 8 which fits snugly within the flange 6. The closure 7 is provided with a lip 9 which nor mally rests slightly above the top of the can 5 so that a screw driver or other suitable tool may be placed between said top and said lip for the purpose of removing the closure 7.

In practicing my improved process, I first fill the can 5 with the desired substance and then introduce the flange 8 within the flange 6 and press the closure towards the top of -saidran until it occupies-the position shown in Fig.2.

It being understood that the flange 8 is merely a smooth cylindrical flange slightly longer than the flange "6 and which fits snugly within the latter. danger exists that the closure? will be inadvertently displaced from the can 5 when the latter is used .for transporting liquid -or semi-liquid substances. This difliculty has existed to such an extentthat it h as been the custom hereto :f-ore to -applysolder-to the lip '9 and the top of the can in ordertto secure the closure in place.

Theobject :of my improved process is to obviate theinecessity "for applying solder to 'theilip 9 and top of the can *5.

After the closure 7 is. placed in position, as

just explained, I then produce any desired plurality of indentations lOwithin the lower .end ofthe flange *8 in order to form projections extending past the lower edge of the ifiange :6.

The indentations 10 are so shaped that the upper surface of the projections on the outside of the flange 8 will be disposed at an obtuse angle to the upper part of the flange 8 in order to insure that when the requisite degree of force is applied. to the lip 9. the angular upper surface of said projections will slightly force the adjacent portions of the flange 6 outwardly in order to permit said projections to pass upwardly within the flange 6 to permit of the removal of the closure 7 The bottom surfaces of the indentations 10 are curved to permit of the insertion of the closure after its removal.

When the closure 7 is forced upwardly, as just described. the flange 6 springs outwardly adjacent the projections formed by the indentations 10 and thus causes the metal in the other parts of the flange 6 to impinge with greater force upon the flange 8 and deform the same slightly in order to provide a sufficient yielding of the flange 6 near said projections in order to permit the removal of the closure 7 as before stated.

It is to be noted that my improved process comprehends the following steps First, the filling of the can; second, the placing of the closure within the can: and third, the forming of indentations within a portion of the closure which indentations produce projections on the surface of the closure, which projections are so related to the body of the can as to hold said closure in place with suflicient force to Withstand any shocks that would occur during transportation, which projections are so shaped as to cause a suiiicient deformation of the adja cent portions of the can body as to permit of the ready removal of the closure.

Thus, my improved closure and process of applying the sainebroadly dilierentiate my invention from those closures and cans which are prepared With locking means before the application of the closure to the can. 1

While I have shown one arrangei'nent of projections related to one form of can, it is to be understood that the disclosure is for purposes of illustration only and in nowise to limit the scope of my invention, for changes may be made in the structure of the can and the closure and in the shape of the projections without departing from the spirit of my invention.

I claim:

1. The combination with a can having an opening surrounded by a flange, of a clo-- sure fitting within said flange and projections formed on said closure below said flange to secure said closure in place said projections being sh aped to permit said projections to displace portions of said flange to permit of the removal of said closure.

2. The combination with a can having a 3. The combination with a can having a flat top provided with an opening surrounded by a cylindrical flange, of a closure having a cylindrical portion fitting with said flange and projections formed on said portion below said flange to secure said closure in place, said projections having tops dis posed at such angles to said flange that said tops will press the adjacent portions ot said flange outwardly to permit the passage of said projections when said. closure is being removed.

4-. The herein described process of securing materials in cans which consists in forming said cans with an opening surrounded by a flange. placing said materials in said cans, forcing into said flange a closure having a portion. closely fitting said flange, and pressing indentations into said portions in order to form projections extending across the edge of said flange to secure said closure in place.

In testimony whereof, I aflix my signature.

CHARLES NEUBERT J12. 

